Search a number
-
+
34144434021 = 374923151909
BaseRepresentation
bin11111110011001010…
…101011011101100101
310021010120202222001110
4133303022223131211
51024411433342041
623404041415233
72316062620605
oct376312533545
9107116688043
1034144434021
1113531708715
12674aa9a519
1332b1bb7119
14191ca38c05
15d4c8ce516
hex7f32ab765

34144434021 has 8 divisors (see below), whose sum is σ = 45526819360. Its totient is φ = 22762502352.

The previous prime is 34144434019. The next prime is 34144434031. The reversal of 34144434021 is 12043444143.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 34144434021 - 21 = 34144434019 is a prime.

It is a super-2 number, since 2×341444340212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34144434021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34144434011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148815 + ... + 300723.

It is an arithmetic number, because the mean of its divisors is an integer number (5690852420).

Almost surely, 234144434021 is an apocalyptic number.

It is an amenable number.

34144434021 is a deficient number, since it is larger than the sum of its proper divisors (11382385339).

34144434021 is a wasteful number, since it uses less digits than its factorization.

34144434021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226835.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 34144434021 its reverse (12043444143), we get a palindrome (46187878164).

The spelling of 34144434021 in words is "thirty-four billion, one hundred forty-four million, four hundred thirty-four thousand, twenty-one".

Divisors: 1 3 74923 151909 224769 455727 11381478007 34144434021